Author Interviews, Blood Pressure - Hypertension, Salt-Sodium / 16.04.2025
Dietary Potassium May Affect Salt Excretion in Men and Women Differently
Editor's note: Not everyone should eat a potassium-enriched diet. Too much potassium can be toxic and cause serious side effects including cardiac arrhythmias. Hyperkalemia, or elevated potassium levels, is a particular concern for patients with impaired kidney function or on certain medications, including some blood pressure medications and diuretics (water pills). Do not start a higher potassium diet without the approval of your health care provider.
MedicalResearch.com Interview with:
Anita T. Layton PhD
Canada 150 Research Chair in Mathematical Biology and Medicine
Professor of Applied Mathematics, Computer Science, Pharmacy and Biology
University of Waterloo
MedicalResearch.com: What is the background for this study? Why did you decide to examine a potential link between potassium intake and lowering blood pressure?
Response: Our diet is so very different from our long-ago ancestors, especially in terms of sodium-to-potassium ratio. We eat so much sodium and so little potassium, that ratio is reversed in our ancestors as well as people in isolated tribes, where high blood pressure is very rare. So, let's figure out why and thus this stud
MedicalResearch.com: In layman's terms, how the ratio of potassium to sodium can both negatively and positively impact the body?
Response: Having more potassium in your body would encourage the kidneys to pee out more sodium (and water), which lowers blood pressure.
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It is your lifestyle that determines your blood pressure levels. Your nutritional intake and the level of activity have a significant part as well.
Esa M. Davis, M.D., M.P.H , F.A.A.F.P
Professor of Medicine and Family and Community Medicine
Associate Vice President of Community Health and
Senior Associate Dean of pPopulation Health and Community Medicine
University of Maryland School of Medicine
Dr. Davis joined the U.S. Preventive Services Task Force in January 2021
MedicalResearch.com: What is the background for this study?
Response: Hypertensive disorders of pregnancy, including gestational hypertension, preeclampsia, and eclampsia, are among the leading causes of serious complications and death for pregnant people in the United States.
Pregnant women and pregnant people of all genders should have their blood pressure measured at each prenatal visit to help find and prevent serious health issues related to hypertensive disorders of pregnancy.
Kathryn Foti, PhD, MPH
Postdoctoral fellow
Department of Epidemiology
Johns Hopkins Bloomberg School of Public Health
MedicalResearch.com: What is the background for this study?
Response: The Kidney Disease: Improving Global Outcomes (KDIGO) 2021 Clinical Practice Guideline for the Management of Blood Pressure (BP) in Chronic Kidney Disease (CKD) provides recommendations for the management of BP in individuals with nondialysis CKD, incorporating new evidence since the publication of its previous guideline in 2012.
The 2021 KDIGO guideline recommends a target systolic BP <120 mmHg based on standardized office BP measurement. This BP goal is largely informed by the findings of the SPRINT trial which found targeting SBP <120 mmHg compared with <140 mmHg reduced the risk of cardiovascular disease by 25% and all-cause mortality by 27%. The benefits were similar for participants with and without CKD.
In our study, we sought to examine the potential implications of the 2021 KDIGO guideline for BP lowering among US adults with CKD compared to the 2012 KDIGO guideline (target BP ≤130/80 mmHg in adults with albuminuria or ≤140/90 mmHg or under without albuminuria) and the 2017 American College of Cardiology/American Heart Association (target BP <130/80 mmHg) guideline. Additionally, we determined implications of the 2021 KDIGO guideline for angiotensin converting enzyme inhibitor (ACEi) or angiotensin II-receptor blocker (ARB) use for those with albuminuria (recommended at systolic BP ≥120 mmHg) compared to the 2012 KDIGO guideline (recommended at BP >130/80 mmHg).